4.1. Acoustics Contour Results

The following contour result options are supported for acoustic analyses:

Contour Result Option	Description
Pressure	Nodal pressures are calculated as part of the overall nodal solution. This corresponds to Mechanical APDL command PLNSOL,PRES.
Total Velocity	The acoustic total velocity is calculated by the Mechanical APDL solver as the corresponding sum of the pressure gradient. This corresponds to Mechanical APDL command PLNSOL,PG, SUM.
Directional Velocity	The acoustic directional velocity is calculated by the Mechanical APDL solver as the corresponding component of the pressure gradient. The available directions are X, Y, and Z. This corresponds to Mechanical APDL command PLNSOL,PG, X/Y/Z.
Kinetic Energy	Acoustic kinetic energy in element. This corresponds to Mechanical APDL command PLNSOL,KENE.
Potential Energy	The acoustic potential energy in the element. This corresponds to Mechanical APDL command PLNSOL,MENE.

The following result options are supported Coupled Field Harmonic and Harmonic Acoustics analyses.

Contour Result Option	Description
Sound Pressure Level	The Acoustic Sound Pressure Level is calculated as part of the overall nodal solution. This corresponds to Mechanical APDL command PLNSOL,SPL.
A-Weighted Sound Pressure Level	The Acoustic A-Weighted Sound Pressure Level is calculated as part of the overall nodal solution. This corresponds to Mechanical APDL command PLNSOL,SPLA.
Frequency Band SPL	The Acoustic Frequency Band SPL is calculated for the requested nodes. This corresponds to Mechanical APDL command PRAS,BSPL.
A-Weighted Frequency Band SPL	The Acoustic A-Weighted Frequency Band SPL is calculated for the requested nodes. This corresponds to Mechanical APDL command PRAS,BSPA.

The following contour results are supported for an LS-DYNA Acoustics analysis:

Contour Result Option	Description
Pressure	Nodal pressures are calculated as part of the overall nodal solution.
Total Velocity	The acoustic total velocity is calculated as the corresponding sum of the pressure gradient.
Sound Pressure Level	The Acoustic Sound Pressure Level is calculated as part of the overall nodal solution.

Note: The contour results plot real*cos(phase) - imaginary*sin(phase).